A cyberattack struck Intoxalock, a Des Moines-based provider of ignition interlock devices, on March 14, disrupting calibrations and preventing some users from starting their cars nationwide. The outage persisted until March 22, prompting service extensions and compensation offers from the company. Affected drivers reported frustrations on Reddit.
Intoxalock supplies ignition interlock devices required in many states for drivers convicted of DUI. These devices, leased for $70–$120 monthly, require a breath test to measure alcohol levels before starting a vehicle. They also demand monthly calibrations at service centers and random retests during drives, with failure risking lockouts, horn activation, or lights flashing to prompt pulling over. Some states add GPS logging or photos. Intoxalock's systems went offline due to an unspecified cyberattack on March 14, halting calibrations. Users missing deadlines faced vehicle lockouts. The company informed a Connecticut outlet that 7–10 percent of users there were impacted. On March 18, Intoxalock posted a status update authorizing 10-day calibration extensions at local centers, though not applicable to all device versions or states. It pledged to cover direct costs, including towing. By March 20, the pause extended to March 22. Systems fully resumed that day, enabling installations and calibrations. On Reddit's r/intoxalock forum, users shared anger and discussed potential class-action lawsuits.
